A random sample of 30 college students is selected. Each student is asked how much time they spent on homework during the
previous week. The following times (in hours) are obtained.
23, 19, 24, 15, 21, 18, 20, 21, 22, 25, 16, 24, 15, 22, 18, 20, 19, 21, O
23, 18, 16, 24, 24, 25, 18, 19, 22, 22, 16, 22
(Type whole numbers.)
Hours Studied Freq.
15